M+GUI v1.5.8.1 is compiled. M+GUI new GUI is a stand alone front-end, with similar functionality and interface as MAMEUI.Currently available for Windows and Linux/x11 platforms. M+GUI can automatically download ROMs from FTPs, moreover, it merely downloads the missing roms inside a zip file, resulting a much lower bandwidth consumption.

M+GUI currently supports the following MAME builds: MAME, MESS, SDLMAME, SDLMESS, MAMEPlus

M+GUI v1.5.8.1 changelog:
add support for "ume*.exe".
remove device-drivers "emu/*/*.c" from "Drivers" filter.
change version to 1.5.8.1.
change cache-file flag.
* [WIP] if well please version bump.
* add .7z support. [ilyhacker @ ppxclub]
* fix some arcade with devices (CPS3 Games and etc) lists not in arcade game list. [CLARKH@ppxclub]
* fix when change options will not work right now (should click other option then press OK will work). [CLARKH@ppxclub]
* fix gamelist name show red text. [CLARKH@ppxclub]

Download: M+GUI v1.5.8.1
Source: Here